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No heat/nothing working

Tiny
HARMONY2369
  • MEMBER
  • 2003 AUDI A4
  • 1.8L
  • 4 CYL
  • TURBO
  • MANUAL
  • 230,000 MILES
It does not blow out anything through the vents. I have changed out the blower motor, relay fuse, put in a new thermostat, changed out the coolant, checked all fuses and still nothing. My climate control turns on but I can push all the buttons I want to turning up heat or down to defrost but no air, no nothing. However, my rear defrost works. I cannot seem to figure out what the problem is.
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Thursday, December 13th, 2018 AT 1:16 PM

3 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny
It sounds like you are having a problem with the blower motor module/resistor. I've attached a picture of its location on the side of the hvac box on the right hand side.Here is a tutorial for you to view for the blower motor replacement.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Hope this helps and thanks for using 2CarPros.
Danny-
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Thursday, December 13th, 2018 AT 4:23 PM
Tiny
HARMONY2369
  • MEMBER
  • 2 POSTS
I'll give that a go. Thank you.
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Thursday, December 13th, 2018 AT 4:32 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.
You're welcome. Feel free to ask any other questions and thanks again for using 2CarPros.
Danny-
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Thursday, December 13th, 2018 AT 4:45 PM

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